Jawbreaker is a Pac-Man clone programmed by John Harris for Atari 8-bit computers and published by On-Line Systems.

The story of its creation and Harris's Atari 8-bit implementation of Frogger form a portion of Steven Levy's 1984 book, Hackers: Heroes of the Computer Revolution.

[4] Williams denied Atari's claim but was uncertain of the outcome, stating "If this opens the door to other programmers ripping off my software, what happened here was a bad thing".

[9]: 77 In 1983, Softline readers named Jawbreaker second on its Top Thirty list of Atari 8-bit programs by popularity, behind only Star Raiders.

[11] David H. Ahl of Creative Computing Video & Arcade Games said of Jawbreaker and Snack Attack, "for PacMan fans, either is recommended".